We are one of the best AISI 8620 steel Manufacturers and Exporters,
supplied SAE8620 steel seamless pipe
AISI 8620 is defined as low carbon alloy steel which has 0.5% Cr,
0.2% Mo and 0.5% Ni as strengthening alloy elements.It is generally
supplied as annealed condition with hardness HB255max.
AISI 8620 has good wear resistant with case hardness HRC 60-63 when
carburized, hardened and tempered.Compared with grades 8615 and
8617, it shows good core strength and toughness properties with a
typical tensile strength range of 700-1100 MPa,in small to medium
sized sections.
AISI 8620 is suited for applications which require a combination of
toughness and wear resistance. it is commonly used in the
engineering and automitive industries for toolholders and other
such components.
Typical application:Arbors, pinions, bushes, camshafts,
kingpins,ratchets, gears, splined shafts etc.
AISI 8620 Products Size Range
| Supply Form | Size(mm) | Process |
| Round Pipe | Φ6-Φ100 Thickness 1.0 - 30.0mm | Cold Drawn |
| Φ16-Φ350 Thickness 3.0 - 80.0mm | Hot Rolled |
|
| Plate | Thickness :6 - 150mm | Hot Rolled / Forged |
| Width:1000mm 1500mm 2000mm 2200mm |
Chemical Composition of SAE8620 Alloy Steel
| GRADE | C | Si | Mn | P | S | Cr | Mo | Ni |
| 8620 | 0.18-0.23 | 0.15-0.35 | 0.70-0.90 | ≤ 0.035 | ≤ 0.040 | 0.40-0.60 | 0.15-0.25 | 0.40-0.70 |
AISI 8620 Steel Mechanical Properties
Typical Mechanical Properties For Core – Carburised and Oil
Quenched at 840 °C
| Section Size | 11mm | 30mm | 63mm |
| Tensile Strength Mpa | 980-1270 | 780-1080 | 690-930 |
| Yield Strength Mpa | ≥785 | ≥590 | ≥490 |
| Elongation % | ≥9 | ≥10 | ≥11 |
| Charpy Impact J | ≥41 | ≥41 | ≥41 |
| Hardness HB | 290-375 | 235-320 | 205-275 |
| Hardness HRC | 31-41 | 23-35 | 16-29 |
AISI 8620 Alloy Steel Hardness
| Distance from quenched end mm | 1.5 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 20 | 25 | 30 | 35 | 40 |
| HRC Min | 41 | 37 | 31 | 25 | 21 | – | – | – | – | – | – | – | – |
| HRC Max | 48 | 47 | 43 | 39 | 35 | 32 | 30 | 29 | 26 | 24 | 23 | 23 | 23 |
Hardness values under 20HRC is not specified.
AISI 8620 Steel Forging
Forging temperature should be carried out between 925℃-1230℃,AISI
8620 has low carbon content which is less susceptible to cracking
than medium or high carbon steels,so it may be heated and cooled
more rapidly.Soaking time at forging temperature should be as short
as possible to avoid heavy scaling and excessive grain growth.The
lower the forging-ending temperature ,the finer the grain size
.Don’t forge below minimum forging temperature 850°C.This alloy
should be cooled in sand.
AISI 8620 ALLOY STEELAISI 8620 ALLOY STEEL NORMALIZING
Normalizing is used to refine the structure of forgings that might
have cooled non-uniformly after forged,and considered as a
conditioning treatment before case hardening.Normalizing
temperature for AISI 8620 steel should be carried out between
900℃-925℃. hold suitable time for the steel to be thoroughly heated
to complete the ferrite to austenite transformation.Cool in still
air.This treatment is considered as another method of improving
machinability.
AISI 8620 ALLOY STEEL ANNEALING
Full annealing is recommended for AISI 8620 before machining, AISI
8620 should be carried our at a nominal temperature of
820℃-850℃,hold suitable time for the steel to be thoroughly heated,
then furnace cooling.
AISI 8620 ALLOY STEEL CASE HARDENING
Following core refining, Heat the temperature to 780oC – 820oC,
hold suitable time for the steel to be thoroughly heated, and
quench in oil.Temper as soon as possible after quenched.
AISI 8620 ALLOY STEEL TEMPERING
Tempering is usually carried out to relieve stresses from the
hardening process,it will improve the toughness of both case and
core, with only a little reduction in core strength and case
hardness.Heat the AISI 8620 steel to 150oC – 200oC as required,
hold enough time until temperature is uniform throughout the
section, soak for 1 – 2 hours per 25 mm of section, and cool in
still air.
WHAT IS 8620 STEEL?
8620 is a type of high carbon tool steel that has excellent
machinability and toughness. This means it can be easily cut with
machine tools, while also being strong enough to withstand
substantial forces without breaking. It’s typically used in the
production of cutting tools, such as knives or drill bits, but can
also be found in other applications like saw blades or wrenches.
Questions and Answers
1. who are we?
We are based in Shandong, China, start from 2008,sell to North
America(13.00%),South America(11.00%),South
Asia(10.00%),Africa(10.00%),Southern Europe(10.00%),Western
Europe(6.00%),Domestic Market(5.00%),Northern Europe(5.00%),Central
America(5.00%),Oceania(5.00%),Eastern Asia(5.00%),Southeast
Asia(5.00%),Eastern Europe(5.00%),Mid East(5.00%).
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Steel Sheet,Steel Pipe,Steel Coil,steel bar,stainless steel bar
4. why should you buy from us not from other suppliers?
We manufacture steel products or steel structure for the Solar
Mounting Steel Structure, Transmission & Distribution Steel
Structures (Towers & Poles) , Construction, Industrial, Scaffolding
and Greenhouse Construction. xinpeng special steel was founded
5. what services can we provide?
Accepted Delivery Terms: FOB,CIF,EXW,DDP,DDU;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit
Card,PayPal,Western Union;
Language Spoken:English,Chinese
